Apple today released the sixth beta of OS X 10.11 El Capitan to developers for testing purposes, one week after releasing the fifth El Capitan beta and nearly two months after unveiling the new operating system at its 2015 Worldwide Developers Conference. The update is available through the software update mechanism in the Mac App Store and through the Apple Developer Center. While early betas introduced minor design changes and features, the last few betas have focused on under-the-hood performance improvements and bug fixes to optimize OS X El Capitan ahead of its public release. OS X El Capitan builds on the features introduced with OS X Yosemite, focusing on improving performance and user experience. Behind-the-scenes improvements in El Capitan have made a number of apps and processes on the Mac much faster, and the introduction of Metal makes system-level graphics rendering 40 percent more efficient. Along with a new systemwide font, El Capitan includes a revamped Mission Control feature, a new Spli
